organization · Reporting owner
Benchmark Founders' Fund IX-B, L.P.
Disclosed activity across 1 company
Sign in to followReported relationships
Latest disclosed role at each company.
No relationships currently tracked through insider filings.
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
No balances currently tracked through insider filings.
Past disclosures · reporting ended (1)
No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.
Cerebras Systems Inc.
Report date August 24, 2026 · Filed August 26, 2026
Jointly reported with Benchmark Capital Management Co. VIII, L.L.C., Benchmark Capital Partners VIII, L.P., Benchmark Founders' Fund VIII, L.P., Benchmark Founders' Fund VIII-B, L.P., Benchmark Capital Management Co. IX, L.L.C., Benchmark Capital Partners IX, L.P., Benchmark Founders' Fund IX, L.P., Benchmark Founders' Fund IX-A, L.P.
Section 16 reporting ended · disclosed 2026-08-26. Current position is not established by this disclosure.
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Class A Common StockSEC Table I · non-derivative | IndirectSee Footnote | 0 |
Last balance in matching sequence
After 2026-08-24 transaction · row 2
Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
2 source rowsRow 1 · 2026-08-24 · Conversion · Acquired 963,818 · Balance 963,818 F1: Conversion of a derivative security in accordance with its terms. F2: The shares are held by Benchmark Capital Partners VIII, L.P. ("BCP VIII"), as nominee for itself, Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of each of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over such shares. Each entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such entity's pecuniary interest in such securities. Row 2 · 2026-08-24 · Other · Disposed 963,818 · Balance 0 F3: Represents a pro-rata, in-kind distribution by BCP VIII and its affiliated funds, not for additional consideration, to its partners, including BCMC VIII and its respective members and assignees, in accordance with a Rule 10b5-1 trading plan adopted by the reporting person on May 14, 2026. F2: The shares are held by Benchmark Capital Partners VIII, L.P. ("BCP VIII"), as nominee for itself, Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of each of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over such shares. Each entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such entity's pecuniary interest in such securities. |
| Class B Common StockSEC Table II · derivative / convertible security | IndirectSee Footnote | 8,861,375 |
Reported balance
After 2026-08-24 transaction · row 3
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 3 · 2026-08-24 · Conversion · Disposed 963,818 · Balance 8,861,375 F4: Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock. F2: The shares are held by Benchmark Capital Partners VIII, L.P. ("BCP VIII"), as nominee for itself, Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of each of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over such shares. Each entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such entity's pecuniary interest in such securities. |
| Class B Common StockSEC Table II · derivative / convertible security | IndirectSee Footnote | 689,990 |
Reported balance
Holding disclosure · report date 2026-08-24 · row 4
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 4 · Balance 689,990 F4: Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock. F5: The shares are held by Benchmark Capital Partners IX, L.P. ("BCP IX"), as nominee for itself, Benchmark Founders' Fund IX, L.P. ("BFF IX"), Benchmark Founders' Fund IX-A, L.P. ("BFF IX-A"), and Benchmark Founders' Fund IX-B, L.P. ("BFF IX-B"). Benchmark Capital Management Co. IX, L.L.C. ("BCMC IX"), the general partner of each of BCP IX, BFF IX, BFF IX-A and BFF IX-B, may be deemed to have sole voting and dispositive power over such shares. Each such entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities, except to the extent of such entity's pecuniary interest in such securities. |
Filing footnotes · ownership attribution and instrument terms
F1: Conversion of a derivative security in accordance with its terms.
F2: The shares are held by Benchmark Capital Partners VIII, L.P. ("BCP VIII"), as nominee for itself, Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of each of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over such shares. Each entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such entity's pecuniary interest in such securities.
F3: Represents a pro-rata, in-kind distribution by BCP VIII and its affiliated funds, not for additional consideration, to its partners, including BCMC VIII and its respective members and assignees, in accordance with a Rule 10b5-1 trading plan adopted by the reporting person on May 14, 2026.
F4: Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock.
F5: The shares are held by Benchmark Capital Partners IX, L.P. ("BCP IX"), as nominee for itself, Benchmark Founders' Fund IX, L.P. ("BFF IX"), Benchmark Founders' Fund IX-A, L.P. ("BFF IX-A"), and Benchmark Founders' Fund IX-B, L.P. ("BFF IX-B"). Benchmark Capital Management Co. IX, L.L.C. ("BCMC IX"), the general partner of each of BCP IX, BFF IX, BFF IX-A and BFF IX-B, may be deemed to have sole voting and dispositive power over such shares. Each such entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities, except to the extent of such entity's pecuniary interest in such securities.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| August 24, 2026 Filed Aug 26, 2026 20:01 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | ConversionClass B Common Stock · Derivative | 963,818 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-101469 · tm2624058-1_4seq1.xml · derivative · entry 3 Benchmark Capital Management Co. VIII, L.L.C. · CIK 0001593049 · 10% owner Benchmark Capital Partners VIII, L.P. · CIK 0001593052 · 10% owner Benchmark Founders' Fund VIII, L.P. · CIK 0001597415 · 10% owner Benchmark Founders' Fund VIII-B, L.P. · CIK 0001597399 · 10% owner Benchmark Capital Management Co. IX, L.L.C. · CIK 0001754445 · 10% owner Benchmark Capital Partners IX, L.P. · CIK 0001754447 · 10% owner Benchmark Founders' Fund IX, L.P. · CIK 0001754444 · 10% owner Benchmark Founders' Fund IX-A, L.P. · CIK 0001756980 · 10% owner Benchmark Founders' Fund IX-B, L.P. · CIK 0001754351 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnote Disclosed balance after: 8,861,375 Underlying: Class A Common Stock · 963,818 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F4 · derivative.exercise_price: Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock. F4 · derivative.exercise_date: Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock. F4 · derivative.expiration_date: Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock. F2 · ownership.nature: The shares are held by Benchmark Capital Partners VIII, L.P. ("BCP VIII"), as nominee for itself, Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of each of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over such shares. Each entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such entity's pecuniary interest in such securities. Read SEC document |
| August 24, 2026 Filed Aug 26, 2026 20:01 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | OtherClass A Common Stock | 963,818 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-101469 · tm2624058-1_4seq1.xml · nonDerivative · entry 2 Benchmark Capital Management Co. VIII, L.L.C. · CIK 0001593049 · 10% owner Benchmark Capital Partners VIII, L.P. · CIK 0001593052 · 10% owner Benchmark Founders' Fund VIII, L.P. · CIK 0001597415 · 10% owner Benchmark Founders' Fund VIII-B, L.P. · CIK 0001597399 · 10% owner Benchmark Capital Management Co. IX, L.L.C. · CIK 0001754445 · 10% owner Benchmark Capital Partners IX, L.P. · CIK 0001754447 · 10% owner Benchmark Founders' Fund IX, L.P. · CIK 0001754444 · 10% owner Benchmark Founders' Fund IX-A, L.P. · CIK 0001756980 · 10% owner Benchmark Founders' Fund IX-B, L.P. · CIK 0001754351 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnote Disclosed balance after: 0 F3 · kind: Represents a pro-rata, in-kind distribution by BCP VIII and its affiliated funds, not for additional consideration, to its partners, including BCMC VIII and its respective members and assignees, in accordance with a Rule 10b5-1 trading plan adopted by the reporting person on May 14, 2026. F2 · ownership.nature: The shares are held by Benchmark Capital Partners VIII, L.P. ("BCP VIII"), as nominee for itself, Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of each of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over such shares. Each entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such entity's pecuniary interest in such securities. Read SEC document |
| August 24, 2026 Filed Aug 26, 2026 20:01 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | ConversionClass A Common Stock | 963,818 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-101469 · tm2624058-1_4seq1.xml · nonDerivative · entry 1 Benchmark Capital Management Co. VIII, L.L.C. · CIK 0001593049 · 10% owner Benchmark Capital Partners VIII, L.P. · CIK 0001593052 · 10% owner Benchmark Founders' Fund VIII, L.P. · CIK 0001597415 · 10% owner Benchmark Founders' Fund VIII-B, L.P. · CIK 0001597399 · 10% owner Benchmark Capital Management Co. IX, L.L.C. · CIK 0001754445 · 10% owner Benchmark Capital Partners IX, L.P. · CIK 0001754447 · 10% owner Benchmark Founders' Fund IX, L.P. · CIK 0001754444 · 10% owner Benchmark Founders' Fund IX-A, L.P. · CIK 0001756980 · 10% owner Benchmark Founders' Fund IX-B, L.P. · CIK 0001754351 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnote Disclosed balance after: 963,818 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: Conversion of a derivative security in accordance with its terms. F2 · ownership.nature: The shares are held by Benchmark Capital Partners VIII, L.P. ("BCP VIII"), as nominee for itself, Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of each of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over such shares. Each entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such entity's pecuniary interest in such securities. Read SEC document |
| August 17, 2026 Filed Aug 19, 2026 21:43 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | ConversionClass B Common Stock · Derivative | 2,402,352 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-098848 · tm2623587-1_4seq1.xml · derivative · entry 3 Benchmark Capital Management Co. VIII, L.L.C. · CIK 0001593049 · 10% owner Benchmark Capital Partners VIII, L.P. · CIK 0001593052 · 10% owner Benchmark Founders' Fund VIII, L.P. · CIK 0001597415 · 10% owner Benchmark Founders' Fund VIII-B, L.P. · CIK 0001597399 · 10% owner Benchmark Capital Management Co. IX, L.L.C. · CIK 0001754445 · 10% owner Benchmark Capital Partners IX, L.P. · CIK 0001754447 · 10% owner Benchmark Founders' Fund IX, L.P. · CIK 0001754444 · 10% owner Benchmark Founders' Fund IX-A, L.P. · CIK 0001756980 · 10% owner Benchmark Founders' Fund IX-B, L.P. · CIK 0001754351 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnote Disclosed balance after: 9,825,193 Underlying: Class A Common Stock · 2,402,352 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F4 · derivative.exercise_price: Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock. F4 · derivative.exercise_date: Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock. F4 · derivative.expiration_date: Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock. F2 · ownership.nature: The shares are held by Benchmark Capital Partners VIII, L.P. ("BCP VIII"), as nominee for itself, Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of each of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over such shares. Each entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such entity's pecuniary interest in such securities. Read SEC document |
| August 17, 2026 Filed Aug 19, 2026 21:43 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | OtherClass A Common Stock | 2,402,352 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-098848 · tm2623587-1_4seq1.xml · nonDerivative · entry 2 Benchmark Capital Management Co. VIII, L.L.C. · CIK 0001593049 · 10% owner Benchmark Capital Partners VIII, L.P. · CIK 0001593052 · 10% owner Benchmark Founders' Fund VIII, L.P. · CIK 0001597415 · 10% owner Benchmark Founders' Fund VIII-B, L.P. · CIK 0001597399 · 10% owner Benchmark Capital Management Co. IX, L.L.C. · CIK 0001754445 · 10% owner Benchmark Capital Partners IX, L.P. · CIK 0001754447 · 10% owner Benchmark Founders' Fund IX, L.P. · CIK 0001754444 · 10% owner Benchmark Founders' Fund IX-A, L.P. · CIK 0001756980 · 10% owner Benchmark Founders' Fund IX-B, L.P. · CIK 0001754351 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnote Disclosed balance after: 0 F3 · kind: Represents a pro-rata, in-kind distribution by BCP VIII and its affiliated funds, not for additional consideration, to its partners, including BCMC VIII and its respective members and assignees, in accordance with a Rule 10b5-1 trading plan adopted by the reporting person on May 14, 2026. F2 · ownership.nature: The shares are held by Benchmark Capital Partners VIII, L.P. ("BCP VIII"), as nominee for itself, Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of each of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over such shares. Each entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such entity's pecuniary interest in such securities. Read SEC document |
| August 17, 2026 Filed Aug 19, 2026 21:43 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | ConversionClass A Common Stock | 2,402,352 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-098848 · tm2623587-1_4seq1.xml · nonDerivative · entry 1 Benchmark Capital Management Co. VIII, L.L.C. · CIK 0001593049 · 10% owner Benchmark Capital Partners VIII, L.P. · CIK 0001593052 · 10% owner Benchmark Founders' Fund VIII, L.P. · CIK 0001597415 · 10% owner Benchmark Founders' Fund VIII-B, L.P. · CIK 0001597399 · 10% owner Benchmark Capital Management Co. IX, L.L.C. · CIK 0001754445 · 10% owner Benchmark Capital Partners IX, L.P. · CIK 0001754447 · 10% owner Benchmark Founders' Fund IX, L.P. · CIK 0001754444 · 10% owner Benchmark Founders' Fund IX-A, L.P. · CIK 0001756980 · 10% owner Benchmark Founders' Fund IX-B, L.P. · CIK 0001754351 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnote Disclosed balance after: 2,402,352 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: Conversion of a derivative security in accordance with its terms. F2 · ownership.nature: The shares are held by Benchmark Capital Partners VIII, L.P. ("BCP VIII"), as nominee for itself, Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of each of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over such shares. Each entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such entity's pecuniary interest in such securities. Read SEC document |
| May 15, 2026 Filed May 19, 2026 21:00 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | ConversionClass B Common Stock · Derivative | 689,990 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-063913 · tm2614958-1_4seq1.xml · derivative · entry 8 Benchmark Capital Management Co. VIII, L.L.C. · CIK 0001593049 · 10% owner Benchmark Capital Partners VIII, L.P. · CIK 0001593052 · 10% owner Benchmark Founders' Fund VIII, L.P. · CIK 0001597415 · 10% owner Benchmark Founders' Fund VIII-B, L.P. · CIK 0001597399 · 10% owner Benchmark Capital Management Co. IX, L.L.C. · CIK 0001754445 · 10% owner Benchmark Capital Partners IX, L.P. · CIK 0001754447 · 10% owner Benchmark Founders' Fund IX, L.P. · CIK 0001754444 · 10% owner Benchmark Founders' Fund IX-A, L.P. · CIK 0001756980 · 10% owner Benchmark Founders' Fund IX-B, L.P. · CIK 0001754351 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnote Disclosed balance after: 689,990 Underlying: Class A Common Stock · 689,990 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F4 · derivative.exercise_price: Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock. F4 · derivative.exercise_date: Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock. F4 · derivative.expiration_date: Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock. F3 · ownership.nature: The shares are held by Benchmark Capital Partners IX, L.P. ("BCP IX"), as nominee for itself, Benchmark Founders' Fund IX, L.P. ("BFF IX"), Benchmark Founders' Fund IX-A, L.P. ("BFF IX-A"), and Benchmark Founders' Fund IX-B, L.P. ("BFF IX-B"). Benchmark Capital Management Co. IX, L.L.C. ("BCMC IX"), the general partner of each of BCP IX, BFF IX, BFF IX-A and BFF IX-B, may be deemed to have sole voting and dispositive power over such shares. Each such entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities, except to the extent of such entity's pecuniary interest in such securities. Read SEC document |
| May 15, 2026 Filed May 19, 2026 21:00 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | ConversionClass B Common Stock · Derivative | 14,385,347 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-063913 · tm2614958-1_4seq1.xml · derivative · entry 7 Benchmark Capital Management Co. VIII, L.L.C. · CIK 0001593049 · 10% owner Benchmark Capital Partners VIII, L.P. · CIK 0001593052 · 10% owner Benchmark Founders' Fund VIII, L.P. · CIK 0001597415 · 10% owner Benchmark Founders' Fund VIII-B, L.P. · CIK 0001597399 · 10% owner Benchmark Capital Management Co. IX, L.L.C. · CIK 0001754445 · 10% owner Benchmark Capital Partners IX, L.P. · CIK 0001754447 · 10% owner Benchmark Founders' Fund IX, L.P. · CIK 0001754444 · 10% owner Benchmark Founders' Fund IX-A, L.P. · CIK 0001756980 · 10% owner Benchmark Founders' Fund IX-B, L.P. · CIK 0001754351 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnote Disclosed balance after: 14,385,347 Underlying: Class A Common Stock · 14,385,347 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F4 · derivative.exercise_price: Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock. F4 · derivative.exercise_date: Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock. F4 · derivative.expiration_date: Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock. F2 · ownership.nature: The shares are held by Benchmark Capital Partners VIII, L.P. ("BCP VIII"), as nominee for itself, Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of each of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over such shares. Each entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such entity's pecuniary interest in such securities. Read SEC document |
| May 15, 2026 Filed May 19, 2026 21:00 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | ConversionSeries G Preferred Stock · Derivative | 689,990 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-063913 · tm2614958-1_4seq1.xml · derivative · entry 6 Benchmark Capital Management Co. VIII, L.L.C. · CIK 0001593049 · 10% owner Benchmark Capital Partners VIII, L.P. · CIK 0001593052 · 10% owner Benchmark Founders' Fund VIII, L.P. · CIK 0001597415 · 10% owner Benchmark Founders' Fund VIII-B, L.P. · CIK 0001597399 · 10% owner Benchmark Capital Management Co. IX, L.L.C. · CIK 0001754445 · 10% owner Benchmark Capital Partners IX, L.P. · CIK 0001754447 · 10% owner Benchmark Founders' Fund IX, L.P. · CIK 0001754444 · 10% owner Benchmark Founders' Fund IX-A, L.P. · CIK 0001756980 · 10% owner Benchmark Founders' Fund IX-B, L.P. · CIK 0001754351 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnote Disclosed balance after: 0 Underlying: Class B Common Stock · 689,990 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each share of Series A, Series B, Series C, Series D, Series E and Series G Preferred Stock automatically converted into one share of Class B Common Stock upon completion of the Issuer's initial public offering pursuant to its terms and has no expiration date. F1 · derivative.exercise_date: Each share of Series A, Series B, Series C, Series D, Series E and Series G Preferred Stock automatically converted into one share of Class B Common Stock upon completion of the Issuer's initial public offering pursuant to its terms and has no expiration date. F1 · derivative.expiration_date: Each share of Series A, Series B, Series C, Series D, Series E and Series G Preferred Stock automatically converted into one share of Class B Common Stock upon completion of the Issuer's initial public offering pursuant to its terms and has no expiration date. F3 · ownership.nature: The shares are held by Benchmark Capital Partners IX, L.P. ("BCP IX"), as nominee for itself, Benchmark Founders' Fund IX, L.P. ("BFF IX"), Benchmark Founders' Fund IX-A, L.P. ("BFF IX-A"), and Benchmark Founders' Fund IX-B, L.P. ("BFF IX-B"). Benchmark Capital Management Co. IX, L.L.C. ("BCMC IX"), the general partner of each of BCP IX, BFF IX, BFF IX-A and BFF IX-B, may be deemed to have sole voting and dispositive power over such shares. Each such entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities, except to the extent of such entity's pecuniary interest in such securities. Read SEC document |
| May 15, 2026 Filed May 19, 2026 21:00 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | ConversionSeries E Preferred Stock · Derivative | 5,457 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-063913 · tm2614958-1_4seq1.xml · derivative · entry 5 Benchmark Capital Management Co. VIII, L.L.C. · CIK 0001593049 · 10% owner Benchmark Capital Partners VIII, L.P. · CIK 0001593052 · 10% owner Benchmark Founders' Fund VIII, L.P. · CIK 0001597415 · 10% owner Benchmark Founders' Fund VIII-B, L.P. · CIK 0001597399 · 10% owner Benchmark Capital Management Co. IX, L.L.C. · CIK 0001754445 · 10% owner Benchmark Capital Partners IX, L.P. · CIK 0001754447 · 10% owner Benchmark Founders' Fund IX, L.P. · CIK 0001754444 · 10% owner Benchmark Founders' Fund IX-A, L.P. · CIK 0001756980 · 10% owner Benchmark Founders' Fund IX-B, L.P. · CIK 0001754351 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnote Disclosed balance after: 0 Underlying: Class B Common Stock · 5,457 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each share of Series A, Series B, Series C, Series D, Series E and Series G Preferred Stock automatically converted into one share of Class B Common Stock upon completion of the Issuer's initial public offering pursuant to its terms and has no expiration date. F1 · derivative.exercise_date: Each share of Series A, Series B, Series C, Series D, Series E and Series G Preferred Stock automatically converted into one share of Class B Common Stock upon completion of the Issuer's initial public offering pursuant to its terms and has no expiration date. F1 · derivative.expiration_date: Each share of Series A, Series B, Series C, Series D, Series E and Series G Preferred Stock automatically converted into one share of Class B Common Stock upon completion of the Issuer's initial public offering pursuant to its terms and has no expiration date. F2 · ownership.nature: The shares are held by Benchmark Capital Partners VIII, L.P. ("BCP VIII"), as nominee for itself, Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of each of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over such shares. Each entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such entity's pecuniary interest in such securities. Read SEC document |
| May 15, 2026 Filed May 19, 2026 21:00 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | ConversionSeries D Preferred Stock · Derivative | 30,968 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-063913 · tm2614958-1_4seq1.xml · derivative · entry 4 Benchmark Capital Management Co. VIII, L.L.C. · CIK 0001593049 · 10% owner Benchmark Capital Partners VIII, L.P. · CIK 0001593052 · 10% owner Benchmark Founders' Fund VIII, L.P. · CIK 0001597415 · 10% owner Benchmark Founders' Fund VIII-B, L.P. · CIK 0001597399 · 10% owner Benchmark Capital Management Co. IX, L.L.C. · CIK 0001754445 · 10% owner Benchmark Capital Partners IX, L.P. · CIK 0001754447 · 10% owner Benchmark Founders' Fund IX, L.P. · CIK 0001754444 · 10% owner Benchmark Founders' Fund IX-A, L.P. · CIK 0001756980 · 10% owner Benchmark Founders' Fund IX-B, L.P. · CIK 0001754351 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnote Disclosed balance after: 0 Underlying: Class B Common Stock · 30,968 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each share of Series A, Series B, Series C, Series D, Series E and Series G Preferred Stock automatically converted into one share of Class B Common Stock upon completion of the Issuer's initial public offering pursuant to its terms and has no expiration date. F1 · derivative.exercise_date: Each share of Series A, Series B, Series C, Series D, Series E and Series G Preferred Stock automatically converted into one share of Class B Common Stock upon completion of the Issuer's initial public offering pursuant to its terms and has no expiration date. F1 · derivative.expiration_date: Each share of Series A, Series B, Series C, Series D, Series E and Series G Preferred Stock automatically converted into one share of Class B Common Stock upon completion of the Issuer's initial public offering pursuant to its terms and has no expiration date. F2 · ownership.nature: The shares are held by Benchmark Capital Partners VIII, L.P. ("BCP VIII"), as nominee for itself, Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of each of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over such shares. Each entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such entity's pecuniary interest in such securities. Read SEC document |
| May 15, 2026 Filed May 19, 2026 21:00 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | ConversionSeries C Preferred Stock · Derivative | 335,293 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-063913 · tm2614958-1_4seq1.xml · derivative · entry 3 Benchmark Capital Management Co. VIII, L.L.C. · CIK 0001593049 · 10% owner Benchmark Capital Partners VIII, L.P. · CIK 0001593052 · 10% owner Benchmark Founders' Fund VIII, L.P. · CIK 0001597415 · 10% owner Benchmark Founders' Fund VIII-B, L.P. · CIK 0001597399 · 10% owner Benchmark Capital Management Co. IX, L.L.C. · CIK 0001754445 · 10% owner Benchmark Capital Partners IX, L.P. · CIK 0001754447 · 10% owner Benchmark Founders' Fund IX, L.P. · CIK 0001754444 · 10% owner Benchmark Founders' Fund IX-A, L.P. · CIK 0001756980 · 10% owner Benchmark Founders' Fund IX-B, L.P. · CIK 0001754351 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnote Disclosed balance after: 0 Underlying: Class B Common Stock · 335,293 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each share of Series A, Series B, Series C, Series D, Series E and Series G Preferred Stock automatically converted into one share of Class B Common Stock upon completion of the Issuer's initial public offering pursuant to its terms and has no expiration date. F1 · derivative.exercise_date: Each share of Series A, Series B, Series C, Series D, Series E and Series G Preferred Stock automatically converted into one share of Class B Common Stock upon completion of the Issuer's initial public offering pursuant to its terms and has no expiration date. F1 · derivative.expiration_date: Each share of Series A, Series B, Series C, Series D, Series E and Series G Preferred Stock automatically converted into one share of Class B Common Stock upon completion of the Issuer's initial public offering pursuant to its terms and has no expiration date. F2 · ownership.nature: The shares are held by Benchmark Capital Partners VIII, L.P. ("BCP VIII"), as nominee for itself, Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of each of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over such shares. Each entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such entity's pecuniary interest in such securities. Read SEC document |
| May 15, 2026 Filed May 19, 2026 21:00 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | ConversionSeries B Preferred Stock · Derivative | 1,425,394 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-063913 · tm2614958-1_4seq1.xml · derivative · entry 2 Benchmark Capital Management Co. VIII, L.L.C. · CIK 0001593049 · 10% owner Benchmark Capital Partners VIII, L.P. · CIK 0001593052 · 10% owner Benchmark Founders' Fund VIII, L.P. · CIK 0001597415 · 10% owner Benchmark Founders' Fund VIII-B, L.P. · CIK 0001597399 · 10% owner Benchmark Capital Management Co. IX, L.L.C. · CIK 0001754445 · 10% owner Benchmark Capital Partners IX, L.P. · CIK 0001754447 · 10% owner Benchmark Founders' Fund IX, L.P. · CIK 0001754444 · 10% owner Benchmark Founders' Fund IX-A, L.P. · CIK 0001756980 · 10% owner Benchmark Founders' Fund IX-B, L.P. · CIK 0001754351 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnote Disclosed balance after: 0 Underlying: Class B Common Stock · 1,425,394 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each share of Series A, Series B, Series C, Series D, Series E and Series G Preferred Stock automatically converted into one share of Class B Common Stock upon completion of the Issuer's initial public offering pursuant to its terms and has no expiration date. F1 · derivative.exercise_date: Each share of Series A, Series B, Series C, Series D, Series E and Series G Preferred Stock automatically converted into one share of Class B Common Stock upon completion of the Issuer's initial public offering pursuant to its terms and has no expiration date. F1 · derivative.expiration_date: Each share of Series A, Series B, Series C, Series D, Series E and Series G Preferred Stock automatically converted into one share of Class B Common Stock upon completion of the Issuer's initial public offering pursuant to its terms and has no expiration date. F2 · ownership.nature: The shares are held by Benchmark Capital Partners VIII, L.P. ("BCP VIII"), as nominee for itself, Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of each of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over such shares. Each entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such entity's pecuniary interest in such securities. Read SEC document |
| May 15, 2026 Filed May 19, 2026 21:00 UTC | Cerebras Systems Inc. CBRS · Entity 3072 | ConversionSeries A Preferred Stock · Derivative | 12,588,235 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-063913 · tm2614958-1_4seq1.xml · derivative · entry 1 Benchmark Capital Management Co. VIII, L.L.C. · CIK 0001593049 · 10% owner Benchmark Capital Partners VIII, L.P. · CIK 0001593052 · 10% owner Benchmark Founders' Fund VIII, L.P. · CIK 0001597415 · 10% owner Benchmark Founders' Fund VIII-B, L.P. · CIK 0001597399 · 10% owner Benchmark Capital Management Co. IX, L.L.C. · CIK 0001754445 · 10% owner Benchmark Capital Partners IX, L.P. · CIK 0001754447 · 10% owner Benchmark Founders' Fund IX, L.P. · CIK 0001754444 · 10% owner Benchmark Founders' Fund IX-A, L.P. · CIK 0001756980 · 10% owner Benchmark Founders' Fund IX-B, L.P. · CIK 0001754351 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnote Disclosed balance after: 0 Underlying: Class B Common Stock · 12,588,235 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each share of Series A, Series B, Series C, Series D, Series E and Series G Preferred Stock automatically converted into one share of Class B Common Stock upon completion of the Issuer's initial public offering pursuant to its terms and has no expiration date. F1 · derivative.exercise_date: Each share of Series A, Series B, Series C, Series D, Series E and Series G Preferred Stock automatically converted into one share of Class B Common Stock upon completion of the Issuer's initial public offering pursuant to its terms and has no expiration date. F1 · derivative.expiration_date: Each share of Series A, Series B, Series C, Series D, Series E and Series G Preferred Stock automatically converted into one share of Class B Common Stock upon completion of the Issuer's initial public offering pursuant to its terms and has no expiration date. F2 · ownership.nature: The shares are held by Benchmark Capital Partners VIII, L.P. ("BCP VIII"), as nominee for itself, Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of each of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over such shares. Each entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such entity's pecuniary interest in such securities. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.